Polyisocyanates and Prepolymers

Transcription

1 Polyisocyanates and Prepolymers Covestro Deutschland AG Business Unit Coatings, Adhesives and Specialties D Leverkusen Germany This information and our technical advice whether verbal, in writing or by ways of trial are given in good faith but without warranty and are subject to change without notice. This also applies where proprietary rights of third parties are involved. The information is provided by Covestro AG without assumption of any liability. Our advice does not release you from the obligation to verify the information provided especially that contained in our safety data and technical information sheets, to check for updates of any information provided by us and to test our products as to their suitability for the intended processes and uses. The application, use and processing of our products and the products manufactured by you on the basis of our technical advice are beyond our control and, therefore, entirely your own responsibility. Our products are sold in accordance with the current version of our General Conditions of Sale and Delivery. Edition: 2015 Order-No.: COV Printed in Germany Bayhydur Desmotherm Bayhytherm Desmoseal Imprafix Baybond Crelan

2 02 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 03 Contents Our Mission: INVENTING FOR YOU Building blocks for supply security, efficiency and sustainability Polyisocyanates and prepolymers Grades with shining properties 10 Applications ighlights Our product portfolio Bayhydur D R/quix ydrophilic modified polyisocyanates ydrophilic modified polyisocyanates Special waterborne grades Special grades BL Desmotherm Bayhydur BL/Baybond XL/Imprafix Desmoseal S Bayhytherm /Desmoseal Crelan N Fast-lane access to polyurethane innovations Z TDI-based MDI-based PMDI-based Silane-terminated MDI-based prepolymers DI-based Blocked grades Self-crosslinking baking urethane resins Waterborne blocked grades Waterborne self-crosslinking baking urethane resins Powder hardeners IPDI-based Aliphatic prepolymers Bayhydur Desmotherm Bayhytherm Desmoseal Imprafix Baybond Crelan

3 04 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 05 As your leading partner for polyurethane chemistry, we know you are competing in increasingly challenging environments: Your customers are becoming more and more demanding in their expectations for quality, durability, sustainability and aesthetics of products. And they have more choices. For you this means that cost pressure is rising while innovation cycles are becoming faster and faster. INVENTING VISIONS FOR YOU elping you to turn this challenge into your competitive advantage is the goal that drives our daily work. We call it: INVENTING FOR YOU. But what exactly are the basic values underlying this promise? What principles enable us to improve your productivity, drive sustainability, ensure reliability and co-create future-proof businesses? First and foremost, we are curious. Because only if we listen closely to you and ask the right questions, we can respond to your individual needs with new, creative and unexpected solutions that make a real difference to you. That s why inventing for us always starts with thinking about your unmet business challenges. It requires an indepth understanding of your needs along the whole value chain. To make sure: What we invent stands the test of time. Living up to this aspiration requires more than competencies it calls for a corporate culture of being courageous. A culture that is defined and lived by dedicated people who cooperate to push the boundaries of invention founded on knowledge and experience. Our courage permeates our entire business from partnerships to business models. This is also reflected in our colorful business philosophy. We appreciate partnerships that go beyond traditional black-and-white ways of acting and thinking. An attitude of openness that invites you to co-create new things rather enabling you than just providing. We are optimistic and resourceful in finding solutions that inspire our customers and partners. This set of fundamental values adds up to an unrivaled performance orientation to constantly strive for the better, be it through big or small changes. A true sense of business regardless of function. And a deep commitment to delivering our promise everyday. Anywhere. Again and again. INVENTING FOR YOU.

4 06 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 07 Building blocks for supply security, efficiency and sustainability Outstanding quality and supply security worldwide Covestro, the world s leading manufacturer of aliphatic and aromatic isocyanates, offers an extensive range of raw materials and services for the coatings and adhesives industry. This allows the very latest technology to be used extremely effectively for a variety of applications. Thanks to its unique setup and worldwide network of state-of-the-art production sites, R&D facilities and customer technical centers, industry-leading supply chain setup, global orientation and local stocks, extremely large product portfolio, highest health, safety and environmental (SE) standards, as well as tailored supply chain flexibility with short lead times, Covestro offers the industry unrivaled supply security and assured quality. Solutions to enhance your process efficiency Nowadays, the quality demands made on industrial processes are very high. But at the time, there is a clear need to cut costs. Both goals can be achieved by increasing process efficiency. At Covestro we have a wide range of solutions designed to enhance your process efficiency. Why not take advantage of our know-how? These solutions will be good for your bottom line. igh coating performance enabled by nature Sustainability drives innovation at Covestro. We are committed to optimizing our manufacturing processes, reducing the impact of logistics, and enabling sustainability along the value chains. Renewable feedstocks offer opportunities for developing more sustainable building blocks for coating solutions with significant potential for reducing the carbon footprint of end products while also reducing our overall dependence on fossil-based resources. But to make more sustainable solutions not just possible but also economically feasible, the performance of all our feedstocks needs to satisfy high industry standards. To this end, we are evaluating the use of renewable raw materials and will enlarge our product portfolio with new bio-based and mid- to long-term cost-competitive products, provided the raw materials become commercially available. In all these efforts we are committed to focusing on products that perform at least as well as established products but are at the same time more sustainable.

5 08 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 09 Polyisocyanates and prepolymers: Grades with shining properties Pioneering polyurethane chemistry Ever since the discovery by Otto Bayer of the poly isocyanate-polyaddition process in 1937, Bayer now Covestro has pioneered poly urethane chemistry. 50 years ago, Bayer now Covestro developed the first applications using polyisocyanates for the coatings and adhesives sectors. We work closely with our customers to systematically advance the state of the art in polyurethane technology. Using market-oriented research and development, we specifically adapt our product portfolio to our customers increasingly stringent requirements. Together with you, we want to continue our successful journey along this path. Wide variety of applications Our polyisocyanates comprise a broad range of products for one and two-component (1K/2K) polyurethane systems used in numerous applications. Whether as crosslinkers for 2K polyurethane coatings and adhesives, blocked polyisocyanates for 1K polyurethane baking coatings or hydrophilized polyisocyanates as crosslinkers for waterreducible polyurethane systems, our products come into play wherever crosslinking is used to achieve high resistances and reliable adhesion under efficient conditions. Our solutions are in use today in a variety of applications, such as automotive OEMs, automotive refinishing and coatings for wood, industrial goods and plastics. They are also used in reactive adhesives, textile coatings, and anticorrosion coatings. Customized properties Gloss, leveling, scratch resistance, hardness and flexibility can be precisely adjusted by the choice of polyisocyanate and polyol. Chemical resistance, adhesion, light fastness and weather stability are additional properties that can be individually adapted to your specific requirements. Moreover, coatings with easy-to-clean, softtouch or reflow properties can also be produced through smart formulations. Flexibility in prepolymers Our product range of prepolymers comprises aromatic and aliphatic NCO- and silane terminated products. These prepolymers make a wide range of properties possible in coatings, adhesives and sealants. The typical areas of application include wood coatings, corrosion protection, floor coatings, elastic adhesives in transportation, parquet adhesives, engineered wood constructions, flex ible film lamination and sealants. Prepolymers with a low fraction of non-polymer-bound components open up formulation options for producing reactive polyurethane adhesive and sealants that are not subject to labeling requirements.

6 10 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 11 Applications ighlights... Marine coatings... Coatings of glass... Floor coatings... Adhesives for modern timber constructions... Coating of wood and furniture... Coating of agriculture equipments... Sealant applications... Automotive coatings... Coatings of plastics

7 12 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 13 for coatings and adhesives. 2,4-TDI CONTENT [WT. %] FUNCTIONALITY C MAX./ACIDITY MAX. [mg/kg Cl ] / [mg/kg Cl] Monomeric TDI products NCO APPROX. [WT. %] VISC. AT 25 C WEIGT PROPERTIES T65N /40 T /40 Stabilizer: Irganox 1076 FD T /20 Stabilizer: Irganox 1076 FD TYPE NCO (SUPPLY FORM) APPROX. [%] VISC. AT 23 C INDUSTRIAL FLOOR WALL * = These products represent only a selection of the TDIbased products primarily used in coating applications. Additional TDI-based products can be found, for example, on the Covestro CAS website: TDI-based* SUPPLY FORM APPROX. [%] WEIGT APPROX. CORROSION PROTECTION WOOD FURNITURE PLASTICS L 75 TDI Adduct 75 EA ,600 Standard crosslinker with broad range of applications, e.g. chemically resistant coatings, anti-corrosion coatings, industrial coatings, wood and furniture finishes, concrete coatings = especially suitable = suitable L 67 MPA/X TDI Adduct 67 MPA/X ,600 See L 75 L 67 BA TDI Adduct 67 BA See L 75 IL BA TDI Isocyanurate 51 BA ,000 Very hard and very fast-drying coatings for wood, furniture and paper IL EA TDI Isocyanurate 51 EA See IL BA IL 1351 BA TDI Isocyanurate 51 BA ,300 See IL BA IL 1351 EA TDI Isocyanurate 51 EA See IL BA IL 1451 BA TDI Isocyanurate 51 BA IL 1451 EA TDI Isocyanurate 51 EA L BA TDI/DI Isocyanurate 60 BA ,200 Like IL 1351 BA but with improved compatibility Like IL 1351 EA but with improved compatibility Very fast-drying coatings for wood, furniture, metal, plastic and paper with better elasticity than IL and better lightfastness L EA TDI/DI Isocyanurate 60 EA ,100 See L BA

8 14 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 15 Prepolymers are the reaction products of aromatic or aliphatic isocyanates and polyols, such as polyethers or polyesters. The wide variability of the isocyanate content and functionality enables the viscosity of the prepolymers and the mechanical properties of the finished products to be precisely adjusted. SOLIDS CONTENT [APPROX. %] MONOMER CONTENT [WT. %] VISCOSITY AT TEMPERATURE [ C] FUNCTIONALITY* Prepolymers based on TDI NCO APPROX. [WT. %] SOLVENT VISCOSITY COLOR INDEX [IODINE] WEIGT APPROX. E , n. m. LF 955 E , n. m. LF 1,270 E 1361 MPA/X MPA/X SF 615 Polyether-based prepolymer for flexible coatings and membranes Polyether-based prepolymer for flexible coatings and membranes, flexibilization in anti-corrosion systems Fast-drying 1K moisture-curing coatings, good resistance * LF = Low functionality ( ) SF = Standard functionality ( ) F= igh functionality (> 3.6) n. m.= not measured E 1361 BA BA SF 615 See E 1361 MPA/X E 1160 MPA/X MPA/X LF 775 E BA 0.5 1, n. m. LF 790 1K moisture-curing coatings with good resistance properties 1K moisture-curing coatings in combination with other E types: good resistance properties and very fast drying LEGEND BA CPL DMEA EA DI IB IPDI MDI MPA NMP = Butyl acetate = Caprolactane = Dimethyl ethanol amine = Ethyl acetate = examethylene diisocyanate = Isobutanol = Isophorone diisocyanate = Diphenylmethane diisocyanate = Methoxypropylacetate = N-Methyl pyrrolidone PDI PSDA PG DME SN TDI VP LS... XP... X = Pentamethylen diisocyanate = Propylenglycoldiacetat = Dipropylenglycoldimethylether = Solvent naphtha = Toluene diisocyanate = Trial products = Xylene

9 16 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 17 for coatings and adhesives. VISCOSITY FUNCTIONALITY* C MAX./ACIDITY MAX. [mg/kg Cl ] / [mg/kg Cl] Monomeric MDI products NCO APPROX. [WT. %] VISCOSITY AT TEMPERATURE [ C] WEIGT 44M liquid / Flexible packaging, hotmelts, sealants; additional supply form: fused and flakes 44MC liquid / otmelts, sealants, improved prepolymer stability; additional supply form: fused and flakes LS / Flexible packaging, hotmelts, approx. 55 % 2,4 -MDI/45 % 4,4 -MDI * LF = Low functionality ( ) SF = Standard functionality ( ) F = igh functionality (> 3.6) 2460M / CD-S / Polymeric MDI products (PMDI products)** Flexible packaging, hotmelts, approx. 55 % 2,4 -MDI/45 % 4,4 -MDI color stabilized otmelts, sealants, modified monomeric MDI, liquid at room temperature, storage stable at low temperatures ** = These products represent only a selection of the MDI-based products primarily used in coating applications. Additional MDI-based products can be found, for example, on the Covestro CAS website: VK LF 130 /600 Prepolymers, high 2,4 -MDI content, good compatibility with polyethers VK LF 135 /1000 VK10L LF 135 /1000 One- & two-component adhesives, high 2,4 -MDI content, low PMDI content, good compatibility with polyethers One- & two-component adhesives, high 2,4 -MDI content, low PMDI content good compatibility with polyethers, lower reactivity than VK 10, VLR SF 135 /200 VKS SF 135 /200 Standard two-component adhesives VKS20F SF 135 /200 Standard two-component adhesives (exact specification on request) VKS20F SF 135 /150 Standard two-component adhesives (exact specification on request) 44V40L SF 135 /300 Standard two-component adhesives 44V70L SF 135 /500 Standard two-component adhesives

10 18 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 19 Desmoseal VL family Crosslinkers for solvent-free 2K polyurethane coatings for anti-corrosion and construction applications. Desmoseal S Silane-terminated polyurethanes (STPs) that combine the properties of polyurethanes with those of silicones to create a new class of prepolymers. Primarily designed to act as binders for moisture-curing sealants and elastic adhesives, these high molecular weight prepolymers consist of a polyurethane backbone and a trifunctional silane end group. TYPE NCO CONTENT APPROX. [%] VISC. AT 25 C FLOOR WALL PMDI products* SUPPLY FORM WEIGT APPROX. AUTO OEM CORROSION PROTECTION VL MDI polyisocyanate Solvent-free Crosslinker for solvent-free coatings, sealants and membranes VL 50 MDI polyisocyanate Solvent-free VL 51 MDI polyisocyanate Solvent-free See VL 50 VL R 10 MDI polyisocyanate Solvent-free VL R 20 MDI polyisocyanate Solvent-free See VL R 10 VKS 20 F MDI polyisocyanate Solvent-free Very low viscosity; same applications as VL but better compatibility with polyethers and lower reactivity; more flexible igher reactivity than VL; for solvent-free spray coatings and membranes Lower reactivity than VL R 20; for solvent-free coatings and membranes * = These products represent only a selection of the MDIbased products primarily used in coating applications. Additional MDI-based products can be found, for example, on the Covestro CAS website: = especially suitable = suitable XP 2551 MDI polyisocyanate Solvent-free Crosslinker primarily for polyol emulsions PLASTICIZER MOLECULAR WEIGT Silaneterminated polyurethanes SOLIDS CONTENT [%] VISCOSITY AT 23 C Desmoseal S XP ,000 igh Desmoseal S XP Mesamoll 35,000 Medium Desmoseal S XP ,500 Low Desmoseal S XP ,000 igh Desmoseal S XP ,000 Low Sealants & adhesives, prepolymer for soft formulations with low modulus and and high elongation at break, with good elastic recovery Sealants & adhesives, prepolymer for hard formulations with high modulus and medium elongation at break, with high cohesive strength Sealants & adhesives, medium to high modulus, prepolymer for adhesives, primers, waterproofing membranes, good elastic properties, low elongation at break Sealants & adhesives, prepolymer for very soft formulations with low modulus and high elongation at break, with good elastic recovery Adhesives, prepolymer for very hard formulations with high tensile and lab shear strength

11 20 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 21 Desmoseal and Desmoseal M prepolymers are the reaction products of aromatic or aliphatic isocyanates and polyols, such as polyethers or polyesters. The wide variability of the building blocks, isocyanate content and functionality enables the viscosity of the prepolymers and the mechanical properties of the finished products to be precisely adjusted. VISCOSITY FUNCTIONALITY* Prepolymers based on MDI NCO APPROX. [WT. %] VISCOSITY AT TEMPERATURE [ C] WEIGT APPROX. V 20 N LF 170 Gymnasium floors, storage stable at low temperatures E LF 175 Primer for flooring applications, binder for corrosion protection E XP LF 195 Corrosion protection e.g. pipe coatings E , SF 260 Wood bonding, binder for corrosion protection * LF = Low functionality ( ) SF = Standard functionality ( ) F = igh functionality (> 3.6) E , LF 265 Injection resin for sealing water-conveying cracks in structures above and below ground E XP , LF 270 1K and 2K adhesives E , LF 270 Wood bonding, flexible packaging, binder for corrosion protection E XP , SF 265 Wood bonding, higher reacitivity compared to E 23 E XP LF 275 1K and 2K binder for corrosion protection and adhesives E 2200/ , LF 425 Flexible packaging E , LF 490 Bonding of granulated rubber E XP , LF 700 Low monomer 1K PUR hotmelts Desmoseal M , LF 2,000 Sealants, elastic adhesives

12 22 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 23 N Family: ardeners for high-performance two-component polyurethane coatings with excellent weatherability and resistance properties. OCN (C O OCN NCO O VISCOSITY COLOR INDEX [AZEN] WEIGT Aliphatic isocyanates Monomers NCO APPROX. [WT. %] VISCOSITY AT TEMPERATURE [ C] FUNCTIONALITY (DI) I (IPDJ) = especially suitable = suitable W ( 12 MDI) TYPE NCO CONTENT ON SUPPLY VISC. AT 23 C FORM APPROX. [%] AUTO-REFINIS LARGE VEICLES WOOD FURNITURE PARQUET TRADE CORROSION PROTECTION DI-Biuret SUPPLY FORM APPROX. [%] WEIGT APPROX. AUTO OEM INDUSTRIAL PLASTIC FLOOR WALL N 100 DI biuret Solvent-free ,000 Weather-stable and non-yellowing topcoats N 75 MPA/X DI biuret 75 MPA/X Outstanding weather stability and gloss retention, no yellowing; for air and force-drying automotive, wood, furniture, industrial and plastics coatings, anti-corrosion coatings and chemically resistant coatings N 75 MPA DI biuret 75 MPA See N 75 MPA/X N 75 BA DI biuret 75 BA See N 75 MPA/X N 3200 DI biuret Solvent-free ,500 Lower viscosity than N 100; especially for weather-stable and non-yellowing high-solids coatings, structural coatings and topcoats DI-Trimer N 3300 DI isocyanurate Solvent-free ,000 Outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats N 3390 BA/SN N 3390 BA DI isocyanurate DI isocyanurate 90 BA/SN See N BA See N 3300

13 24 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 25 N Family: ardeners for high-grade two-component polyurethane coatings with excellent weatherability and resistance properties. OCN (C O O TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%] VISC. AT 23 C AUTO-REFINIS LARGE VEICLES WOOD FURNITURE PARQUET TRADE CORROSION PROTECTION DI-Trimer SUPPLY FORM APPROX. [%] WEIGT APPROX. AUTO OEM INDUSTRIAL PLASTIC FLOOR WALL N 3600 DI isocyanurate Solvent-free ,200 N 3790 BA DI isocyanurate 90 BA ,800 N 3800 DI isocyanurate Solvent-free ,000 N 3900 DI iminooxadiazinedione Solvent-free XP 2675 DI isocyanurate Solvent-free ,000 blulogiq 3190 DI isocyanurate 90 BA Low-viscosity crosslinker for weather-stable and non-yellowing high-solids and waterborne coatings for automotive refinishing, automotive OEM and industrial applications; also for structural coatings and topcoats ighly functional crosslinker for fast-drying, weatherstable and non-yellowing 2K-PUR coatings for automotive refinishing, automotive OEM and industrial applications For highly elastic coatings with resistance to accelerated and outdoor weathering; combination with suitable polyisocyanates allows variation of the elasticity using the same polyol mill base Low-viscosity crosslinker for lightfast 2K-PUR coatings (high-solids/waterborne e.g. in combination with Bayhydur types) for automotive refinishing, automotive OEM, transportation and plastics finishing applications Solvent-free, highly functional crosslinker for solventfree 2K applications, outstanding weather-stability, non-yellowing Thermolatent crosslinker that has standard reactivity at ambient conditions but acts as a highly catalyzed crosslinker at elevated temperatures. Baking temperature of 75 C or higher recommended. Especially for high gloss spray coatings. = especially suitable = suitable DI-Specialties XP 2860 DI allophanate Solvent-free N 3400 DI uretdione Solvent-free XP 2840 N 3580 BA N 3500 DI uretdione/ trimer DI allophanate/ trimer DI allophanate/ trimer Solvent-free BA Solvent-free ,000 Flexible, low-viscosity crosslinker for weatherstable high-solids and waterborne 2K-PUR coatings e.g. in combination with Bayhydur or Desmudur types, especially for industrial, automotive refinishing, transportation and plastic coatings Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats ighly functional crosslinker; outstanding weather stability; improved chemical and scratch resistance for automotive OEMs and plastics ighly functional crosslinker; outstanding weather stability; improved chemical and scratch resistance for direct coating (RIM)

14 26 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 27 Z Family: Fast-drying two-component polyurethane coatings with high chemical resistance. OCN (C O Desmodur eco N family: Two-comp polyurethane coatings with excellent weatherability and resistance based on biobased Pentamethylen diisocyanate (PDI). O TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%] VISC. AT 23 C AUTO- REFINIS LARGE VEICLES WOOD FURNITURE PARQUET TRADE CORROSION PROTECTION PDI-based SUPPLY FORM APPROX. [%] WEIGT APPROX. AUTO OEM INDUSTRIAL PLASTIC FLOOR WALL eco N 7300 PDI isocyanunate Solvent-free , % renewable, outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats = especially suitable = suitable IPDI-based Z 4470 SN IPDI isocyanurate 70 SN ,000 Fast-drying hardener for lightfast 2K-PUR coatings with high resistance to chemicals and weathering. For automotive OEM, refinishing and industrial applications. On account of its high hardness, Z is normally mixed with N products Z 4470 MPA/X IPDI isocyanurate 70 MPA/X ,500 See Z 4470 SN Z 4470 BA IPDI isocyanurate 70 BA See Z 4470 SN XP 2565 IPDI allophanate 80 BA ,800 Crosslinker for weatherstable, fast-drying high-solids and waterborne 2K-PUR coatings e.g. in combination with Bayhydur types, for automotive refinishing and transportation applications XP 2489 DI/IPDI polyisocyanate Solvent-free ,500 Outstanding weatherability, gloss and improved resistance for automotive OEM and plastics; especially for ultra high solid and solvent-free applications, e.g. in-mould coating XP 2838 DI/IPDI polyisocyanate Solvent-free ,000 Solvent-free crosslinker for lightfast 2K-PUR systems; as a binder for solvent-free decorative floor coatings XP 2763 DI/IPDI polyisocyanate 86 BA ,100 Outstanding crosslinker for weather-stable 2K PU and polyaspartic coatings; longer pot life and extended recoating window with polyaspartic coatings

15 28 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 29 prepolymers based on aliphatic isocyanates like DI or IPDI display good weather stability and are color-stable. These unique properties are important for applications such as corrosion protection or non-yellowing coatings and adhesives. OCN (C O Prepolymers based on aliphatic isocyanates NCO APPROX. [WT. %] SOLIDS CONTENT APPROX. [WT. %] SOLVENT MONOMER CONTENT [WT. %] VISCOSITY APPROX. [mpa s] VISCOSITY AT TEMPERATURE [ C] COLOR INDEX [IODINE] FUNCTIONALITY* WEIGT APPROX. DI PREPOLYMERS E XP < 0.5 2, n. m. F 250 1K and 2K adhesives XP < 0.5 4, n. m. LF 335 1K and 2K adhesives, bonding of granulated rubber * F = igh functionality (> 3.6) LF = Low functionality ( ) n. m. = not measured XP , n. m. F 700 1K and 2K coatings and adhesives E 3265 MPA/SN MPA/SN , F 1,700 E MPA/SN , [azen] F 420 Anti-corrosion coatings, good weather stability, non-yellowing, 1K application Anti-corrosion coatings, good weather stability, non-yellowing, 1K application E 2863 XP < 0.3 1, n. m. LF 380 Waterproofing membranes, floor coatings IPDI PREPOLYMERS VPLS < 2.0 9, n. m. LF 1,135 1K sealants XP MPA < 0.5 7, [azen] LF 1,500 Elastic coatings and sealants with very good weather stability

16 30 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 31 Bayhydur The key to easy and reliable application of waterborne 2K PU systems. O OCN (C TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%] VISC. AT 23 C AUTO-REFINIS LARGE VEICLES GLASS PLASTIC FLOOR WALL ydrophilic modified polyisocyanates SUPPLY FORM APPROX. [%] WEIGT APPROX. AUTO OEM INDUSTRIAL WOOD FURNITURE PARQUET TRADE CORROSION PROTECTION Bayhydur 3100 ydrophilic polyisocyanate (DI) ,800 Versatile and economical = especially suitable = suitable Bayhydur 304 ydrophilic polyisocyanate (DI) ,000 Versatile use, improved mixing Bayhydur 305 ydrophilic polyisocyanate (DI) ,500 Easy mixing, high gloss Bayhydur IPDI type hydrophilic modified 70 MPA/X Fast-drying, chemical resistant Bayhydur XP 2451/1 ydrophilic polyisocyanate (DI) Low viscosity, suited for solvent-free formulations Bayhydur XP 2487/1 ydrophilic polyisocyanate (DI) ,400 ighest chemical resistance Bayhydur XP 2547 ydrophilic polyisocyanate (DI) Bayhydur XP 2655 ydrophilic polyisocyanate (DI) ,500 ighest chemical resistance, low viscosity, suited for solvent-free formulations ighest chemical resistance, easy mixing Bayhydur XP 2700 ydrophilic polyisocyanate (DI) 65 PGDME Easy mixing, high gloss Bayhydur XP 2759 IPDI type hydrophilic modified 70 MPA ,500 Fast-drying, easy mixing, high chemical resistance Bayhydur 2858 XP ydrophilic polyisocyanate (DI/IPDI) 70 PGDA Fast-drying, easy mixing, high chemical resistance

17 32 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 33 D and R: ardeners for reactive, high-performance adhesives. O OCN (C SUPPLY FORM APPROX. [%] WEIGT APPROX. ADESIVES ydrophilic modified polyisocyanates TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%] VISCOSITY AT 23 C DA-L ydrophilic polyisocyanate (DI) ,000 Crosslinking agent for O-functional polymer dispersions including polyurethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersi ons. Improves resistance to heat, water, plasticizers and many solvents = especially suitable = suitable DN ydrophilic polyisocyanate (DI) ,250 See DA-L Special waterborne grades XP 2802 Carbodiimide 40 Water approx. 1 mmol N = C = N-/g Crosslinking agent for aequous dispersion polymers containing carboxyl groups. The product is characterized by its long pot life Special grades RC TDI isocyanurate 35 EA RN TDI/DI isocyanurate 40 EA RE Triphenylmethan-4,4,4 -triisocyanat 27 EA ardener for 2K-PUR systems, especially for industrial adhesives applications. Especially pale-colored adhesives used to bond rubber materials ardener for 2K-PUR systems especially for industrial adhesives applications. For the use in adhesives to achieve significantly reduced discoloration on exposure to light ardener for 2K-PUR systems especially for industrial adhesives applications. ighly effective crosslinker for adhesives based on Desmocoll, natural or synthetic rubber, with special adhesion on rubber materials RFE Tris (p-isocyanatophenyl) thiophosphat 27 EA ardener for 2K-PUR systems especially for industrial adhesives applications. A crosslinker with very universal suitability for adhesives based on Desmocoll, natural or synthetic rubber, with special adhesion on rubber materials quix 175 Araliphatic polyisocyanate based on xylene diisocyanate 75 EA ighly reactive crosslinker with aliphatic NCO groups. For the use in adhesive for flexible packaging

18 34 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 35 BL Family: Grades for 1K PU stoving systems with high-performance polyurethane properties when combined with Desmophen. The aliphatic grades are light-stable and weather-resistant. OCN (C O TYPE BLOCKED NCO CONTENT ON SUPPLY FORM APPROX. [%] VISC. AT 23 C INDUSTRIAL CAN Aromatic blocked prepolymers SUPPLY FORM APPROX. [%] WEIGT APPROX. AUTO OEM COIL GLASS BL 1100/1 TDI-based ,400 43,000 In combination with cycloaliphatic diamines for 1K stoving primers with high film thickness and good stone-chip resistance = especially suitable = suitable BL 1265/1 MPA/X TDI-based 65 MPA/X ,000 For primers Aliphatic thermally activated polyurethane hardener BL 3175 SN DI-based 75 SN ,300 Standard product BL 4265 SN IPDI-based 65 SN ,000 Standard product BL MDI-based 75 MPA/SN ,000 igh flexibility BL 3575/1 MPA/SN DI-based 75 SN/MPA ,600 Lower thermal yellowing and lowest color value PL 350 MPA/SN DI-based 75 SN/MPA ,300 Lower thermal yellowing PL 340 BA/SN IPDI-based 60 SN/BA Lower thermal yellowing BL 3370 MPA DI-based 70 MPA ,800 igh reactive BL 3475 BA/SN DI/IPDI-based 75 BA/SN ,000 igh reactive BL 3272 MPA DI-basede 72 MPA ,700 Very high film thickness BL 2078/2 IPDI-based 60 SN ,750 Polyurethane crosslinker with FDA-Food Contact Notification, which may be used in combination with FDA conform polyol, very high film thickness

19 36 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 37 Desmotherm Specialty polyurethanes. TYPE VISC. AT 23 C Self-crosslinking baking urethane resins SUPPLY FORM APPROX. [%] AUTO OEM Desmotherm 2170 MDI self-crosslinking baking urethane resin 70 BA/SN/IB 2,000 For 1K-PUR baking coatings (primers and primersurfacers) = especially suitable = suitable

20 38 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 39 Bayhydur BL Baybond Imprafix Bayhytherm Thermally activated polyurethane hardener for 1K waterborne stoving systems TYPE NON VOLATILE CONTENT APPROX. [%] NEUTRALIZATION AGENT ORGANIC CONSOLVENT CONTENT [%] IN BLOCKED NCO CONTENT [%] ON SOLIDS AUTO OEM INDUSTRIAL METAL GLASS Bayhydur BL 5335 W-based 35 MPA 4.5/X For glass and can coatings with good alkali resistance = especially suitable = suitable Bayhydur BL XP 2706 DI/IPDI-based 40 DMEA Imprafix 2794 XP DI-based igh reactivity, DMP blocked, excellent thermostability (yellowing) and better chemical resistance igh reactivity (DMP blocked) very good thermostability (yellowing), good caustic resistance Baybond XL 6366 DI-based Medium reactivity (MEKO blocked) Baybond XL 825 DI-based Baybond XL 7270 DI-based Low reactivity (CPL blocked), thermostability (yellowing) Low reactivity (CPL blocked), thermostability (yellowing) Baybond XL 3674 XP DI-based Food contact acc. to EC 2011/10 Self-crosslinking urethane resins for 1K waterborne stoving systems Bayhytherm 3146 Aliphatic, self-crosslinking baking urethane resin 46 DMEA NMP 1, SN/MPA 3 For OEM primer surfacers with high solids content; also for general industrial coatings Bayhytherm 3246 XP Aliphatic, self-crosslinking baking urethane resin 46 DMEA MPA 2.6, SN 2.4 Further development of Bayhytherm 3146 without NMP

21 40 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 41 Crelan ardeners for high-performance, lightfast powder coatings with polyurethane quality. TYPE Tg [ C] WEIGT APPROX. STANDARD BAKE CYCLE Powder hardeners SUPPLY FORM BLOCKED NCO CONTENT ON SUPPLY FORM APPROX. [%] FUNCTIONALITY* APPROX. Crelan EF 403 Internally blocked linear IPDI polyisocyanate Flakes internally 310 LF 15 min/180 C For emission-free powder coatings with outstanding levelling and pigment wetting and for special one-shot matte coatings * LF = Low functionality Crelan UI Blocked linear IPDI polyisocyanate Flakes > LF 15 min/180 C For powder coating with good levelling and good pigment wetting or to improve coating properties of hybrid systems Crelan NI-2 Blocked branched IPDI polyisocyanate Prills LF 15 min/180 C For economical standard powder coatings with good levelling, good pigment wetting and good corrosion resistance Crelan VP LS 2256 Blocked branched IPDI polyisocyanate Flakes LF 15 min/180 C For high chemical resistance powder coatings with easy-toclean properties and standard powder coatings with good overall properties Crelan NW-5 Blocked branched W polyisocyanate Prills LF 15 min/175 C For higher reactive powder coatings with excellent flexibility and corrosion resistance properties

22 42 Polyisocyanates and Prepolymers Polyisocyanates and Prepolymers 43 Fast-lane access to polyurethane innovations At Covestro innovation is in our DNA. Ever since Otto Bayer discovered polyurethanes in 1937, we have been driving polyurethane innovations in coatings and adhesives as well as in other application areas. As our partner you enjoy fast-lane access to polyurethane innovations, and can help us in developing the next generation of polyurethanes to meet the industry s upcoming challenges and needs. What can we offer you? Powerful know-how on both established and new polyisocyanates, as well as on new polyurethane hybrid technologies. The prospect of new application technologies to enable efficient processes. More sustainable, biomass- or CO 2-based materials that do not sacrifice high performance. Join us to shape the future!